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ASTM D6494-22
Standard Test Method for Determination of Asphalt Fume Particulate Matter in Workplace Atmospheres as Benzene Soluble Fraction
NORMA vydaná dňa 1.3.2022
Informácie o norme:
Označenie normy: ASTM D6494-22
Dátum vydania normy: 1.3.2022
Kód tovaru: NS-1064844
Počet strán: 5
Približná hmotnosť: 15 g (0.03 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Kategórie - podobné normy:
Anotácia textu normy ASTM D6494-22 :
Keywords:
air monitoring, asphalt fume, benzene soluble fraction, sampling and analysis, workplace atmospheres,, ICS Number Code 13.040.30 (Workplace atmospheres)
Doplňujúce informácie
| Significance and Use | ||||||||
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5.1?Asphalt is a material used in the construction of roads and as a roofing material and sealant. 5.2?This test method provides a means of evaluating exposure to asphalt fume in the working environment at the presently recommended exposure guidelines (for example, Threshold Limit Values and Biological Exposure Indices, ACGIH).7 5.3?This procedure has been adapted from NIOSH Method 5023 (withdrawn prior to 4th edition (1994) and replaced in 1998 with NIOSH Method 5042) and OSHA Method 58 to reduce the level of background contamination providing better reproducibility. |
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| 1. Scope | ||||||||
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1.1?This test method covers the determination of asphalt fume particulate matter (as benzene soluble fraction) and total particulate matter weight in workplace atmospheres using a polytetrafluoroethylene (PTFE) filter methodology. 1.2?This procedure has been adapted from NIOSH Method 5023 (withdrawn prior to 4th edition (1994) and replaced in 1998 with NIOSH Method 5042) and OSHA Method 58. This adaptation was made to reduce the level of background contamination providing better reproducibility. 1.3?This procedure is compatible with high flow rate personal sampling equipment0.5 to 2.0 L/min. It can be used for personal or area monitoring. 1.4?The sampling method develops a time-weighted average (TWA) sample and can be used to determine short-term exposure limit (STEL). 1.5?The applicable concentration range for the TWA sample is from 0.2 to 2.0 mg/m3. Note 1:?A study has suggested candidate solvents for benzene
replacement.1.6?The
values stated in SI units are to be regarded as standard. No other
units of measurement are included in this standard.
1.7?This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.8?This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
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| 2. Referenced Documents | ||||||||
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